Dear Group, Prof Takhee Lee from Seoul National University will be visiting the department on 28th Nov to give a special talk. I've copied his bio and talk abstract below. If you are interested in meeting with him on Wed Nov 28 @ 2:15-3pm, please let me know and I will reserve the time for our group. Cynthia *Bio*: Takhee Lee is currently Associate Professor in the Department of Physics and Astronomy, Seoul National University, Korea. He graduated from Seoul National University, Korea, and received his Ph.D. from Purdue University, USA in 2000. He was a postdoctoral researcher at Yale University, USA until 2004. And, he was a faculty member in Gwangju Institute of Science and Technology, Korea from 2004 until 2011. His current research interests are molecular electronics, polymer memory devices, and graphene-electrode optoelectronic devices. He has edited 2 books and wrote 9 book chapters, 10 review articles, and 150 journal articles. He was awarded Korean Scientist of the Month Award (2010 June), Prime Minister Award (2010 April), Minister of Education, Science and Technology Award (2008 April, 2010 August), and Nano-Korea Researcher Award (2007 August) *Abstract*:*Molecular- and polymer-based electronic devices* Idea of utilizing individual molecules as the electronic components in future ultrahigh-density electronic devices has generated tremendous attention. Obtaining transistor action from molecular orbital control has been the outstanding challenge of the field of molecular electronics nearly since its inception. In this talk, I will explain a direct electrostatic modulation of orbitals in a molecular transistor configuration, with both effective gate control and enhanced resonant coupling of the orbitals to the source and drain electrodes [1]. I will also explain recently developed understanding on the electrical transport characteristics through various types of molecular junctions on flat or flexible substrates [2]. In the second part of this talk, I will present a summary on general characteristics of the materials, device structures, and switching mechanisms used in organic resistive non-volatile memory devices. Strategies for performance enhancement, integration, and advanced architectures in these devices will be presented [3]. And, if time is allowed, I will briefly discuss other research results on nanoscale logic circuits and graphene-electrode optoelectronic devices [4].